Operators

1. Create a namespace for the tenant Operator that is separate from the tenant’s namespace. You can do this by creating a project.
2. Create an Operator group for the tenant Operator scoped only to the tenant’s namespace.
3. Install the Operator in the tenant Operator namespace.

Procedure

1. Create a new project in the Red Hat OpenShift Service on AWS web console for this procedure. This example uses a project called my-etcd.

2. Navigate to the Operators → Installed Operators page. The Operators that have been installed to the cluster by the dedicated-admin and are available for use are shown here as a list of cluster service versions (CSVs). CSVs are used to launch and manage the software provided by the Operator.

   Tip

   You can get this list from the CLI using:

   $ oc get csv

3. On the Installed Operators page, click the etcd Operator to view more details and available actions.

   As shown under Provided APIs, this Operator makes available three new resource types, including one for an etcd Cluster (the EtcdCluster resource). These objects work similar to the built-in native Kubernetes ones, such as Deployment or ReplicaSet, but contain logic specific to managing etcd.

4. Create a new etcd cluster:

   1. In the etcd Cluster API box, click Create instance.
   2. The next page allows you to make any modifications to the minimal starting template of an EtcdCluster object, such as the size of the cluster. For now, click Create to finalize. This triggers the Operator to start up the pods, services, and other components of the new etcd cluster.

5. Click the example etcd cluster, then click the Resources tab to see that your project now contains a number of resources created and configured automatically by the Operator.

   Verify that a Kubernetes service has been created that allows you to access the database from other pods in your project.

6. All users with the edit role in a given project can create, manage, and delete application instances (an etcd cluster, in this example) managed by Operators that have already been created in the project, in a self-service manner, just like a cloud service. If you want to enable additional users with this ability, project administrators can add the role using the following command:

   $ oc policy add-role-to-user edit <user> -n <target_project>

Procedure

1. Navigate in the web console to the Operators → OperatorHub page.

2. Scroll or type a keyword into the Filter by keyword box to find the Operator you want. For example, type advanced to find the Advanced Cluster Management for Kubernetes Operator.

   You can also filter options by Infrastructure Features. For example, select Disconnected if you want to see Operators that work in disconnected environments, also known as restricted network environments.

3. Select the Operator to display additional information.

   Note

   Choosing a Community Operator warns that Red Hat does not certify Community Operators; you must acknowledge the warning before continuing.

4. Read the information about the Operator and click Install.

5. On the Install Operator page, configure your Operator installation:

   1. If you want to install a specific version of an Operator, select an Update channel and Version from the lists. You can browse the various versions of an Operator across any channels it might have, view the metadata for that channel and version, and select the exact version you want to install.

      Note

      The version selection defaults to the latest version for the channel selected. If the latest version for the channel is selected, the Automatic approval strategy is enabled by default. Otherwise, Manual approval is required when not installing the latest version for the selected channel.

      Installing an Operator with Manual approval causes all Operators installed within the namespace to function with the Manual approval strategy and all Operators are updated together. If you want to update Operators independently, install Operators into separate namespaces.

   2. Confirm the installation mode for the Operator:

      • All namespaces on the cluster (default) installs the Operator in the default openshift-operators namespace to watch and be made available to all namespaces in the cluster. This option is not always available.
      • A specific namespace on the cluster allows you to choose a specific, single namespace in which to install the Operator. The Operator will only watch and be made available for use in this single namespace.

   3. For clusters on cloud providers with token authentication enabled:

      • If the cluster uses AWS Security Token Service (STS Mode in the web console), enter the Amazon Resource Name (ARN) of the AWS IAM role of your service account in the role ARN field. To create the role’s ARN, follow the procedure described in Preparing AWS account.
      • If the cluster uses Microsoft Entra Workload ID (Workload Identity / Federated Identity Mode in the web console), add the client ID, tenant ID, and subscription ID in the appropriate fields.
      • If the cluster uses Google Cloud Platform Workload Identity (GCP Workload Identity / Federated Identity Mode in the web console), add the project number, pool ID, provider ID, and service account email in the appropriate fields.

   4. For Update approval, select either the Automatic or Manual approval strategy.

      Important

      If the web console shows that the cluster uses AWS STS, Microsoft Entra Workload ID, or GCP Workload Identity, you must set Update approval to Manual.

      Subscriptions with automatic approvals for updates are not recommended because there might be permission changes to make before updating. Subscriptions with manual approvals for updates ensure that administrators have the opportunity to verify the permissions of the later version, take any necessary steps, and then update.

6. Click Install to make the Operator available to the selected namespaces on this Red Hat OpenShift Service on AWS cluster:

   1. If you selected a Manual approval strategy, the upgrade status of the subscription remains Upgrading until you review and approve the install plan.

      After approving on the Install Plan page, the subscription upgrade status moves to Up to date.

   2. If you selected an Automatic approval strategy, the upgrade status should resolve to Up to date without intervention.

Procedure

1. View the list of Operators available to the cluster from OperatorHub:

   $ oc get packagemanifests -n openshift-marketplace

   Example 4.1. Example output

   NAME                               CATALOG               AGE
   3scale-operator                    Red Hat Operators     91m
   advanced-cluster-management        Red Hat Operators     91m
   amq7-cert-manager                  Red Hat Operators     91m
   # ...
   couchbase-enterprise-certified     Certified Operators   91m
   crunchy-postgres-operator          Certified Operators   91m
   mongodb-enterprise                 Certified Operators   91m
   # ...
   etcd                               Community Operators   91m
   jaeger                             Community Operators   91m
   kubefed                            Community Operators   91m
   # ...

   Note the catalog for your desired Operator.

2. Inspect your desired Operator to verify its supported install modes and available channels:

   $ oc describe packagemanifests <operator_name> -n openshift-marketplace

   Example 4.2. Example output

   # ...
   Kind:         PackageManifest
   # ...
         Install Modes: 1
           Supported:  true
           Type:       OwnNamespace
           Supported:  true
           Type:       SingleNamespace
           Supported:  false
           Type:       MultiNamespace
           Supported:  true
           Type:       AllNamespaces
   # ...
       Entries:
         Name:       example-operator.v3.7.11
         Version:    3.7.11
         Name:       example-operator.v3.7.10
         Version:    3.7.10
       Name:         stable-3.7 2
   # ...
      Entries:
         Name:         example-operator.v3.8.5
         Version:      3.8.5
         Name:         example-operator.v3.8.4
         Version:      3.8.4
       Name:           stable-3.8 3
     Default Channel:  stable-3.8 4

   1

   Indicates which install modes are supported.

   2 3

   Example channel names.

   4

   The channel selected by default if one is not specified.

   Tip

   You can print an Operator’s version and channel information in YAML format by running the following command:

   $ oc get packagemanifests <operator_name> -n <catalog_namespace> -o yaml

   • If more than one catalog is installed in a namespace, run the following command to look up the available versions and channels of an Operator from a specific catalog:

     $ oc get packagemanifest \
        --selector=catalog=<catalogsource_name> \
        --field-selector metadata.name=<operator_name> \
        -n <catalog_namespace> -o yaml

     Important

     If you do not specify the Operator’s catalog, running the oc get packagemanifest and oc describe packagemanifest commands might return a package from an unexpected catalog if the following conditions are met:

     • Multiple catalogs are installed in the same namespace.
     • The catalogs contain the same Operators or Operators with the same name.

3. If the Operator you intend to install supports the AllNamespaces install mode, and you choose to use this mode, skip this step, because the openshift-operators namespace already has an appropriate Operator group in place by default, called global-operators.

   If the Operator you intend to install supports the SingleNamespace install mode, and you choose to use this mode, you must ensure an appropriate Operator group exists in the related namespace. If one does not exist, you can create create one by following these steps:

   Important

   You can only have one Operator group per namespace. For more information, see "Operator groups".

   1. Create an OperatorGroup object YAML file, for example operatorgroup.yaml, for SingleNamespace install mode:

      Example OperatorGroup object for SingleNamespace install mode

      apiVersion: operators.coreos.com/v1
      kind: OperatorGroup
      metadata:
        name: <operatorgroup_name>
        namespace: <namespace> 1
      spec:
        targetNamespaces:
        - <namespace> 2

      1 2

      For SingleNamespace install mode, use the same <namespace> value for both the metadata.namespace and spec.targetNamespaces fields.

   2. Create the OperatorGroup object:

      $ oc apply -f operatorgroup.yaml

4. Create a Subscription object to subscribe a namespace to an Operator:

   1. Create a YAML file for the Subscription object, for example subscription.yaml:

      Note

      If you want to subscribe to a specific version of an Operator, set the startingCSV field to the desired version and set the installPlanApproval field to Manual to prevent the Operator from automatically upgrading if a later version exists in the catalog. For details, see the following "Example Subscription object with a specific starting Operator version".

      Example 4.3. Example Subscription object

      apiVersion: operators.coreos.com/v1alpha1
      kind: Subscription
      metadata:
        name: <subscription_name>
        namespace: <namespace_per_install_mode> 1
      spec:
        channel: <channel_name> 2
        name: <operator_name> 3
        source: <catalog_name> 4
        sourceNamespace: <catalog_source_namespace> 5
        config:
          env: 6
          - name: ARGS
            value: "-v=10"
          envFrom: 7
          - secretRef:
              name: license-secret
          volumes: 8
          - name: <volume_name>
            configMap:
              name: <configmap_name>
          volumeMounts: 9
          - mountPath: <directory_name>
            name: <volume_name>
          tolerations: 10
          - operator: "Exists"
          resources: 11
            requests:
              memory: "64Mi"
              cpu: "250m"
            limits:
              memory: "128Mi"
              cpu: "500m"
          nodeSelector: 12
            foo: bar

      1

      For default AllNamespaces install mode usage, specify the openshift-operators namespace. Alternatively, you can specify a custom global namespace, if you have created one. For SingleNamespace install mode usage, specify the relevant single namespace.

      2

      Name of the channel to subscribe to.

      3

      Name of the Operator to subscribe to.

      4

      Name of the catalog source that provides the Operator.

      5

      Namespace of the catalog source. Use openshift-marketplace for the default OperatorHub catalog sources.

      6

      The env parameter defines a list of environment variables that must exist in all containers in the pod created by OLM.

      7

      The envFrom parameter defines a list of sources to populate environment variables in the container.

      8

      The volumes parameter defines a list of volumes that must exist on the pod created by OLM.

      9

      The volumeMounts parameter defines a list of volume mounts that must exist in all containers in the pod created by OLM. If a volumeMount references a volume that does not exist, OLM fails to deploy the Operator.

      10

      The tolerations parameter defines a list of tolerations for the pod created by OLM.

      11

      The resources parameter defines resource constraints for all the containers in the pod created by OLM.

      12

      The nodeSelector parameter defines a NodeSelector for the pod created by OLM.

      Example 4.4. Example Subscription object with a specific starting Operator version

      apiVersion: operators.coreos.com/v1alpha1
      kind: Subscription
      metadata:
        name: example-operator
        namespace: example-operator
      spec:
        channel: stable-3.7
        installPlanApproval: Manual 1
        name: example-operator
        source: custom-operators
        sourceNamespace: openshift-marketplace
        startingCSV: example-operator.v3.7.10 2

      1

      Set the approval strategy to Manual in case your specified version is superseded by a later version in the catalog. This plan prevents an automatic upgrade to a later version and requires manual approval before the starting CSV can complete the installation.

      2

      Set a specific version of an Operator CSV.

   2. For clusters on cloud providers with token authentication enabled, such as Amazon Web Services (AWS) Security Token Service (STS), Microsoft Entra Workload ID, or Google Cloud Platform Workload Identity, configure your Subscription object by following these steps:

      1. Ensure the Subscription object is set to manual update approvals:

         Example 4.5. Example Subscription object with manual update approvals

         kind: Subscription
         # ...
         spec:
           installPlanApproval: Manual 1

         1

         Subscriptions with automatic approvals for updates are not recommended because there might be permission changes to make before updating. Subscriptions with manual approvals for updates ensure that administrators have the opportunity to verify the permissions of the later version, take any necessary steps, and then update.

      2. Include the relevant cloud provider-specific fields in the Subscription object’s config section:

         • If the cluster is in AWS STS mode, include the following fields:

           Example 4.6. Example Subscription object with AWS STS variables

           kind: Subscription
           # ...
           spec:
             config:
               env:
               - name: ROLEARN
                 value: "<role_arn>" 1

           1

           Include the role ARN details.

         • If the cluster is in Workload ID mode, include the following fields:

           Example 4.7. Example Subscription object with Workload ID variables

           kind: Subscription
           # ...
           spec:
            config:
              env:
              - name: CLIENTID
                value: "<client_id>" 1
              - name: TENANTID
                value: "<tenant_id>" 2
              - name: SUBSCRIPTIONID
                value: "<subscription_id>" 3

           1

           Include the client ID.

           2

           Include the tenant ID.

           3

           Include the subscription ID.

         • If the cluster is in GCP Workload Identity mode, include the following fields:

           Example 4.8. Example Subscription object with GCP Workload Identity variables

           kind: Subscription
           # ...
           spec:
            config:
              env:
              - name: AUDIENCE
                value: "<audience_url>" 1
              - name: SERVICE_ACCOUNT_EMAIL
                value: "<service_account_email>" 2

           where:

           <audience>

           Created in GCP by the administrator when they set up GCP Workload Identity, the AUDIENCE value must be a preformatted URL in the following format:

           //iam.googleapis.com/projects/<project_number>/locations/global/workloadIdentityPools/<pool_id>/providers/<provider_id>

           <service_account_email>

           The SERVICE_ACCOUNT_EMAIL value is a GCP service account email that is impersonated during Operator operation, for example:

           <service_account_name>@<project_id>.iam.gserviceaccount.com

   3. Create the Subscription object by running the following command:

      $ oc apply -f subscription.yaml

5. If you set the installPlanApproval field to Manual, manually approve the pending install plan to complete the Operator installation. For more information, see "Manually approving a pending Operator update".

Verification

1. Check the status of the Subscription object for your installed Operator by running the following command:

   $ oc describe subscription <subscription_name> -n <namespace>

2. If you created an Operator group for SingleNamespace install mode, check the status of the OperatorGroup object by running the following command:

   $ oc describe operatorgroup <operatorgroup_name> -n <namespace>

Procedure

1. Before installing the Operator, create a namespace for the tenant Operator that is separate from the tenant’s namespace. You can do this by creating a project. For example, if the tenant’s namespace is team1, you might create a team1-operator project:

   $ oc new-project team1-operator

2. Create an Operator group for the tenant Operator scoped to the tenant’s namespace, with only that one namespace entry in the spec.targetNamespaces list:

   1. Define an OperatorGroup resource and save the YAML file, for example, team1-operatorgroup.yaml:

      apiVersion: operators.coreos.com/v1
      kind: OperatorGroup
      metadata:
        name: team1-operatorgroup
        namespace: team1-operator
      spec:
        targetNamespaces:
        - team1 1

      1 1

      Define only the tenant’s namespace in the spec.targetNamespaces list.

   2. Create the Operator group by running the following command:

      $ oc create -f team1-operatorgroup.yaml

Procedure

1. Before installing the Operator, create a namespace for the installation of your desired Operator. You can do this by creating a project. The namespace for this project will become the custom global namespace:

   $ oc new-project global-operators

2. Create a custom global Operator group, which is an Operator group that watches all namespaces:

   1. Define an OperatorGroup resource and save the YAML file, for example, global-operatorgroup.yaml. Omit both the spec.selector and spec.targetNamespaces fields to make it a global Operator group, which selects all namespaces:

      apiVersion: operators.coreos.com/v1
      kind: OperatorGroup
      metadata:
        name: global-operatorgroup
        namespace: global-operators

      Note

      The status.namespaces of a created global Operator group contains the empty string (""), which signals to a consuming Operator that it should watch all namespaces.

   2. Create the Operator group by running the following command:

      $ oc create -f global-operatorgroup.yaml

1. Determine a node or set of nodes to target for the pods per your requirements. If available, note an existing label, such as node-role.kubernetes.io/app, that identifies the node or nodes. Otherwise, add a label, such as myoperator, by using a compute machine set or editing the node directly. You will use this label in a later step as the node selector on your project.
2. If you want to ensure that only pods with a certain label are allowed to run on the nodes, while steering unrelated workloads to other nodes, add a taint to the node or nodes by using a compute machine set or editing the node directly. Use an effect that ensures that new pods that do not match the taint cannot be scheduled on the nodes. For example, a myoperator:NoSchedule taint ensures that new pods that do not match the taint are not scheduled onto that node, but existing pods on the node are allowed to remain.
3. Create a project that is configured with a default node selector and, if you added a taint, a matching toleration.

1. Install the Operator as usual.
2. If needed, ensure that your nodes are labeled to properly respond to the affinity.

3. Edit the Operator Subscription object to add an affinity:

   apiVersion: operators.coreos.com/v1alpha1
   kind: Subscription
   metadata:
     name: openshift-custom-metrics-autoscaler-operator
     namespace: openshift-keda
   spec:
     name: my-package
     source: my-operators
     sourceNamespace: operator-registries
     config:
       affinity: 1
         nodeAffinity:
           requiredDuringSchedulingIgnoredDuringExecution:
             nodeSelectorTerms:
             - matchExpressions:
               - key: kubernetes.io/hostname
                 operator: In
                 values:
                 - ip-10-0-185-229.ec2.internal
   #...

   1

   Add a nodeAffinity, podAffinity, or podAntiAffinity. See the Additional resources section that follows for information about creating the affinity.

Procedure

1. In the Administrator perspective of the web console, navigate to Operators → Installed Operators.
2. Click the name of the Operator you want to change the update channel for.
3. Click the Subscription tab.
4. Click the name of the update channel under Update channel.
5. Click the newer update channel that you want to change to, then click Save.

6. For subscriptions with an Automatic approval strategy, the update begins automatically. Navigate back to the Operators → Installed Operators page to monitor the progress of the update. When complete, the status changes to Succeeded and Up to date.

   For subscriptions with a Manual approval strategy, you can manually approve the update from the Subscription tab.

Procedure

1. In the Administrator perspective of the Red Hat OpenShift Service on AWS web console, navigate to Operators → Installed Operators.
2. Operators that have a pending update display a status with Upgrade available. Click the name of the Operator you want to update.
3. Click the Subscription tab. Any updates requiring approval are displayed next to Upgrade status. For example, it might display 1 requires approval.
4. Click 1 requires approval, then click Preview Install Plan.
5. Review the resources that are listed as available for update. When satisfied, click Approve.
6. Navigate back to the Operators → Installed Operators page to monitor the progress of the update. When complete, the status changes to Succeeded and Up to date.

Procedure

1. Navigate to the Operators → Installed Operators page.
2. Scroll or enter a keyword into the Filter by name field to find the Operator that you want to remove. Then, click on it.

3. On the right side of the Operator Details page, select Uninstall Operator from the Actions list.

   An Uninstall Operator? dialog box is displayed.

4. Select Uninstall to remove the Operator, Operator deployments, and pods. Following this action, the Operator stops running and no longer receives updates.

   Note

   This action does not remove resources managed by the Operator, including custom resource definitions (CRDs) and custom resources (CRs). Dashboards and navigation items enabled by the web console and off-cluster resources that continue to run might need manual clean up. To remove these after uninstalling the Operator, you might need to manually delete the Operator CRDs.

Procedure

1. Ensure the latest version of the subscribed operator (for example, serverless-operator) is identified in the currentCSV field.

   $ oc get subscription.operators.coreos.com serverless-operator -n openshift-serverless -o yaml | grep currentCSV

   Example output

     currentCSV: serverless-operator.v1.28.0

2. Delete the subscription (for example, serverless-operator):

   $ oc delete subscription.operators.coreos.com serverless-operator -n openshift-serverless

   Example output

   subscription.operators.coreos.com "serverless-operator" deleted

3. Delete the CSV for the Operator in the target namespace using the currentCSV value from the previous step:

   $ oc delete clusterserviceversion serverless-operator.v1.28.0 -n openshift-serverless

   Example output

   clusterserviceversion.operators.coreos.com "serverless-operator.v1.28.0" deleted

Procedure

1. Get the names of the Subscription and ClusterServiceVersion objects from the namespace where the Operator is installed:

   $ oc get sub,csv -n <namespace>

   Example output

   NAME                                                       PACKAGE                  SOURCE             CHANNEL
   subscription.operators.coreos.com/elasticsearch-operator   elasticsearch-operator   redhat-operators   5.0
   
   NAME                                                                         DISPLAY                            VERSION    REPLACES   PHASE
   clusterserviceversion.operators.coreos.com/elasticsearch-operator.5.0.0-65   OpenShift Elasticsearch Operator   5.0.0-65              Succeeded

2. Delete the subscription:

   $ oc delete subscription <subscription_name> -n <namespace>

3. Delete the cluster service version:

   $ oc delete csv <csv_name> -n <namespace>

4. Get the names of any failing jobs and related config maps in the openshift-marketplace namespace:

   $ oc get job,configmap -n openshift-marketplace

   Example output

   NAME                                                                        COMPLETIONS   DURATION   AGE
   job.batch/1de9443b6324e629ddf31fed0a853a121275806170e34c926d69e53a7fcbccb   1/1           26s        9m30s
   
   NAME                                                                        DATA   AGE
   configmap/1de9443b6324e629ddf31fed0a853a121275806170e34c926d69e53a7fcbccb   3      9m30s

5. Delete the job:

   $ oc delete job <job_name> -n openshift-marketplace

   This ensures pods that try to pull the inaccessible image are not recreated.

6. Delete the config map:

   $ oc delete configmap <configmap_name> -n openshift-marketplace

7. Reinstall the Operator using OperatorHub in the web console.

Procedure

1. Navigate in the web console to the Operators → OperatorHub page.
2. Select the Operator and click Install.

3. On the Install Operator page, modify the Subscription object to include one or more of the following environment variables in the spec section:

   • HTTP_PROXY
   • HTTPS_PROXY
   • NO_PROXY

   For example:

   Subscription object with proxy setting overrides

   apiVersion: operators.coreos.com/v1alpha1
   kind: Subscription
   metadata:
     name: etcd-config-test
     namespace: openshift-operators
   spec:
     config:
       env:
       - name: HTTP_PROXY
         value: test_http
       - name: HTTPS_PROXY
         value: test_https
       - name: NO_PROXY
         value: test
     channel: clusterwide-alpha
     installPlanApproval: Automatic
     name: etcd
     source: community-operators
     sourceNamespace: openshift-marketplace
     startingCSV: etcdoperator.v0.9.4-clusterwide

   Note

   These environment variables can also be unset using an empty value to remove any previously set cluster-wide or custom proxy settings.

   OLM handles these environment variables as a unit; if at least one of them is set, all three are considered overridden and the cluster-wide defaults are not used for the deployments of the subscribed Operator.

4. Click Install to make the Operator available to the selected namespaces.

5. After the CSV for the Operator appears in the relevant namespace, you can verify that custom proxy environment variables are set in the deployment. For example, using the CLI:

   $ oc get deployment -n openshift-operators \
       etcd-operator -o yaml \
       | grep -i "PROXY" -A 2

   Example output

           - name: HTTP_PROXY
             value: test_http
           - name: HTTPS_PROXY
             value: test_https
           - name: NO_PROXY
             value: test
           image: quay.io/coreos/etcd-operator@sha256:66a37fd61a06a43969854ee6d3e21088a98b93838e284a6086b13917f96b0d9c
   ...

Procedure

1. Create an empty config map in the namespace where the subscription for your Operator exists and include the following label:

   apiVersion: v1
   kind: ConfigMap
   metadata:
     name: trusted-ca 1
     labels:
       config.openshift.io/inject-trusted-cabundle: "true" 2

   1

   Name of the config map.

   2

   Requests the Cluster Network Operator to inject the merged bundle.

   After creating this config map, it is immediately populated with the certificate contents of the merged bundle.

2. Update the Subscription object to include a spec.config section that mounts the trusted-ca config map as a volume to each container within a pod that requires a custom CA:

   apiVersion: operators.coreos.com/v1alpha1
   kind: Subscription
   metadata:
     name: my-operator
   spec:
     package: etcd
     channel: alpha
     config: 1
       selector:
         matchLabels:
           <labels_for_pods> 2
       volumes: 3
       - name: trusted-ca
         configMap:
           name: trusted-ca
           items:
             - key: ca-bundle.crt 4
               path: tls-ca-bundle.pem 5
       volumeMounts: 6
       - name: trusted-ca
         mountPath: /etc/pki/ca-trust/extracted/pem
         readOnly: true

   1

   Add a config section if it does not exist.

   2

   Specify labels to match pods that are owned by the Operator.

   3

   Create a trusted-ca volume.

   4

   ca-bundle.crt is required as the config map key.

   5

   tls-ca-bundle.pem is required as the config map path.

   6

   Create a trusted-ca volume mount.

   Note

   Deployments of an Operator can fail to validate the authority and display a x509 certificate signed by unknown authority error. This error can occur even after injecting a custom CA when using the subscription of an Operator. In this case, you can set the mountPath as /etc/ssl/certs for trusted-ca by using the subscription of an Operator.

Procedure

1. List Operator subscriptions:

   $ oc get subs -n <operator_namespace>

2. Use the oc describe command to inspect a Subscription resource:

   $ oc describe sub <subscription_name> -n <operator_namespace>

3. In the command output, find the Conditions section for the status of Operator subscription condition types. In the following example, the CatalogSourcesUnhealthy condition type has a status of false because all available catalog sources are healthy:

   Example output

   Name:         cluster-logging
   Namespace:    openshift-logging
   Labels:       operators.coreos.com/cluster-logging.openshift-logging=
   Annotations:  <none>
   API Version:  operators.coreos.com/v1alpha1
   Kind:         Subscription
   # ...
   Conditions:
      Last Transition Time:  2019-07-29T13:42:57Z
      Message:               all available catalogsources are healthy
      Reason:                AllCatalogSourcesHealthy
      Status:                False
      Type:                  CatalogSourcesUnhealthy
   # ...

Procedure

1. List the catalog sources in a namespace. For example, you can check the openshift-marketplace namespace, which is used for cluster-wide catalog sources:

   $ oc get catalogsources -n openshift-marketplace

   Example output

   NAME                  DISPLAY               TYPE   PUBLISHER   AGE
   certified-operators   Certified Operators   grpc   Red Hat     55m
   community-operators   Community Operators   grpc   Red Hat     55m
   example-catalog       Example Catalog       grpc   Example Org 2m25s
   redhat-marketplace    Red Hat Marketplace   grpc   Red Hat     55m
   redhat-operators      Red Hat Operators     grpc   Red Hat     55m

2. Use the oc describe command to get more details and status about a catalog source:

   $ oc describe catalogsource example-catalog -n openshift-marketplace

   Example output

   Name:         example-catalog
   Namespace:    openshift-marketplace
   Labels:       <none>
   Annotations:  operatorframework.io/managed-by: marketplace-operator
                 target.workload.openshift.io/management: {"effect": "PreferredDuringScheduling"}
   API Version:  operators.coreos.com/v1alpha1
   Kind:         CatalogSource
   # ...
   Status:
     Connection State:
       Address:              example-catalog.openshift-marketplace.svc:50051
       Last Connect:         2021-09-09T17:07:35Z
       Last Observed State:  TRANSIENT_FAILURE
     Registry Service:
       Created At:         2021-09-09T17:05:45Z
       Port:               50051
       Protocol:           grpc
       Service Name:       example-catalog
       Service Namespace:  openshift-marketplace
   # ...

   In the preceding example output, the last observed state is TRANSIENT_FAILURE. This state indicates that there is a problem establishing a connection for the catalog source.

3. List the pods in the namespace where your catalog source was created:

   $ oc get pods -n openshift-marketplace

   Example output

   NAME                                    READY   STATUS             RESTARTS   AGE
   certified-operators-cv9nn               1/1     Running            0          36m
   community-operators-6v8lp               1/1     Running            0          36m
   marketplace-operator-86bfc75f9b-jkgbc   1/1     Running            0          42m
   example-catalog-bwt8z                   0/1     ImagePullBackOff   0          3m55s
   redhat-marketplace-57p8c                1/1     Running            0          36m
   redhat-operators-smxx8                  1/1     Running            0          36m

   When a catalog source is created in a namespace, a pod for the catalog source is created in that namespace. In the preceding example output, the status for the example-catalog-bwt8z pod is ImagePullBackOff. This status indicates that there is an issue pulling the catalog source’s index image.

4. Use the oc describe command to inspect a pod for more detailed information:

   $ oc describe pod example-catalog-bwt8z -n openshift-marketplace

   Example output

   Name:         example-catalog-bwt8z
   Namespace:    openshift-marketplace
   Priority:     0
   Node:         ci-ln-jyryyg2-f76d1-ggdbq-worker-b-vsxjd/10.0.128.2
   ...
   Events:
     Type     Reason          Age                From               Message
     ----     ------          ----               ----               -------
     Normal   Scheduled       48s                default-scheduler  Successfully assigned openshift-marketplace/example-catalog-bwt8z to ci-ln-jyryyf2-f76d1-fgdbq-worker-b-vsxjd
     Normal   AddedInterface  47s                multus             Add eth0 [10.131.0.40/23] from openshift-sdn
     Normal   BackOff         20s (x2 over 46s)  kubelet            Back-off pulling image "quay.io/example-org/example-catalog:v1"
     Warning  Failed          20s (x2 over 46s)  kubelet            Error: ImagePullBackOff
     Normal   Pulling         8s (x3 over 47s)   kubelet            Pulling image "quay.io/example-org/example-catalog:v1"
     Warning  Failed          8s (x3 over 47s)   kubelet            Failed to pull image "quay.io/example-org/example-catalog:v1": rpc error: code = Unknown desc = reading manifest v1 in quay.io/example-org/example-catalog: unauthorized: access to the requested resource is not authorized
     Warning  Failed          8s (x3 over 47s)   kubelet            Error: ErrImagePull

   In the preceding example output, the error messages indicate that the catalog source’s index image is failing to pull successfully because of an authorization issue. For example, the index image might be stored in a registry that requires login credentials.

Procedure

1. Edit the OperatorCondition object for the Operator:

   $ oc edit operatorcondition <name>

2. Add a Spec.Overrides array to the object:

   Example Operator condition override

   apiVersion: operators.coreos.com/v2
   kind: OperatorCondition
   metadata:
     name: my-operator
     namespace: operators
   spec:
     overrides:
     - type: Upgradeable 1
       status: "True"
       reason: "upgradeIsSafe"
       message: "This is a known issue with the Operator where it always reports that it cannot be upgraded."
     conditions:
     - type: Upgradeable
       status: "False"
       reason: "migration"
       message: "The operator is performing a migration."
       lastTransitionTime: "2020-08-24T23:15:55Z"

   1

   Allows the dedicated-admin user to change the upgrade readiness to True.

Procedure

1. Create a CatalogSource object that references your index image.

   1. Modify the following to your specifications and save it as a catalogSource.yaml file:

      apiVersion: operators.coreos.com/v1alpha1
      kind: CatalogSource
      metadata:
        name: my-operator-catalog
        namespace: openshift-marketplace 1
        annotations:
          olm.catalogImageTemplate: 2
            "<registry>/<namespace>/<index_image_name>:v{kube_major_version}.{kube_minor_version}.{kube_patch_version}"
      spec:
        sourceType: grpc
        grpcPodConfig:
          securityContextConfig: <security_mode> 3
        image: <registry>/<namespace>/<index_image_name>:<tag> 4
        displayName: My Operator Catalog
        publisher: <publisher_name> 5
        updateStrategy:
          registryPoll: 6
            interval: 30m

      1

      If you want the catalog source to be available globally to users in all namespaces, specify the openshift-marketplace namespace. Otherwise, you can specify a different namespace for the catalog to be scoped and available only for that namespace.

      2

      Optional: Set the olm.catalogImageTemplate annotation to your index image name and use one or more of the Kubernetes cluster version variables as shown when constructing the template for the image tag.

      3

      Specify the value of legacy or restricted. If the field is not set, the default value is legacy. In a future Red Hat OpenShift Service on AWS release, it is planned that the default value will be restricted. If your catalog cannot run with restricted permissions, it is recommended that you manually set this field to legacy.

      4

      Specify your index image. If you specify a tag after the image name, for example :v4, the catalog source pod uses an image pull policy of Always, meaning the pod always pulls the image prior to starting the container. If you specify a digest, for example @sha256:<id>, the image pull policy is IfNotPresent, meaning the pod pulls the image only if it does not already exist on the node.

      5

      Specify your name or an organization name publishing the catalog.

      6

      Catalog sources can automatically check for new versions to keep up to date.

   2. Use the file to create the CatalogSource object:

      $ oc apply -f catalogSource.yaml

2. Verify the following resources are created successfully.

   1. Check the pods:

      $ oc get pods -n openshift-marketplace

      Example output

      NAME                                    READY   STATUS    RESTARTS  AGE
      my-operator-catalog-6njx6               1/1     Running   0         28s
      marketplace-operator-d9f549946-96sgr    1/1     Running   0         26h

   2. Check the catalog source:

      $ oc get catalogsource -n openshift-marketplace

      Example output

      NAME                  DISPLAY               TYPE PUBLISHER  AGE
      my-operator-catalog   My Operator Catalog   grpc            5s

   3. Check the package manifest:

      $ oc get packagemanifest -n openshift-marketplace

      Example output

      NAME                          CATALOG               AGE
      jaeger-product                My Operator Catalog   93s

Procedure

1. In the Administrator perspective of the web console, navigate to Home → Search.
2. Select a project from the Project: list.
3. Select CatalogSource from the Resources list.
4. Select the Options menu for the catalog that you want to remove, and then click Delete CatalogSource.

Procedure

1. List Operator subscriptions:

   $ oc get subs -n <operator_namespace>

2. Use the oc describe command to inspect a Subscription resource:

   $ oc describe sub <subscription_name> -n <operator_namespace>

3. In the command output, find the Conditions section for the status of Operator subscription condition types. In the following example, the CatalogSourcesUnhealthy condition type has a status of false because all available catalog sources are healthy:

   Example output

   Name:         cluster-logging
   Namespace:    openshift-logging
   Labels:       operators.coreos.com/cluster-logging.openshift-logging=
   Annotations:  <none>
   API Version:  operators.coreos.com/v1alpha1
   Kind:         Subscription
   # ...
   Conditions:
      Last Transition Time:  2019-07-29T13:42:57Z
      Message:               all available catalogsources are healthy
      Reason:                AllCatalogSourcesHealthy
      Status:                False
      Type:                  CatalogSourcesUnhealthy
   # ...

Procedure

1. List the catalog sources in a namespace. For example, you can check the openshift-marketplace namespace, which is used for cluster-wide catalog sources:

   $ oc get catalogsources -n openshift-marketplace

   Example output

   NAME                  DISPLAY               TYPE   PUBLISHER   AGE
   certified-operators   Certified Operators   grpc   Red Hat     55m
   community-operators   Community Operators   grpc   Red Hat     55m
   example-catalog       Example Catalog       grpc   Example Org 2m25s
   redhat-marketplace    Red Hat Marketplace   grpc   Red Hat     55m
   redhat-operators      Red Hat Operators     grpc   Red Hat     55m

2. Use the oc describe command to get more details and status about a catalog source:

   $ oc describe catalogsource example-catalog -n openshift-marketplace

   Example output

   Name:         example-catalog
   Namespace:    openshift-marketplace
   Labels:       <none>
   Annotations:  operatorframework.io/managed-by: marketplace-operator
                 target.workload.openshift.io/management: {"effect": "PreferredDuringScheduling"}
   API Version:  operators.coreos.com/v1alpha1
   Kind:         CatalogSource
   # ...
   Status:
     Connection State:
       Address:              example-catalog.openshift-marketplace.svc:50051
       Last Connect:         2021-09-09T17:07:35Z
       Last Observed State:  TRANSIENT_FAILURE
     Registry Service:
       Created At:         2021-09-09T17:05:45Z
       Port:               50051
       Protocol:           grpc
       Service Name:       example-catalog
       Service Namespace:  openshift-marketplace
   # ...

   In the preceding example output, the last observed state is TRANSIENT_FAILURE. This state indicates that there is a problem establishing a connection for the catalog source.

3. List the pods in the namespace where your catalog source was created:

   $ oc get pods -n openshift-marketplace

   Example output

   NAME                                    READY   STATUS             RESTARTS   AGE
   certified-operators-cv9nn               1/1     Running            0          36m
   community-operators-6v8lp               1/1     Running            0          36m
   marketplace-operator-86bfc75f9b-jkgbc   1/1     Running            0          42m
   example-catalog-bwt8z                   0/1     ImagePullBackOff   0          3m55s
   redhat-marketplace-57p8c                1/1     Running            0          36m
   redhat-operators-smxx8                  1/1     Running            0          36m

   When a catalog source is created in a namespace, a pod for the catalog source is created in that namespace. In the preceding example output, the status for the example-catalog-bwt8z pod is ImagePullBackOff. This status indicates that there is an issue pulling the catalog source’s index image.

4. Use the oc describe command to inspect a pod for more detailed information:

   $ oc describe pod example-catalog-bwt8z -n openshift-marketplace

   Example output

   Name:         example-catalog-bwt8z
   Namespace:    openshift-marketplace
   Priority:     0
   Node:         ci-ln-jyryyg2-f76d1-ggdbq-worker-b-vsxjd/10.0.128.2
   ...
   Events:
     Type     Reason          Age                From               Message
     ----     ------          ----               ----               -------
     Normal   Scheduled       48s                default-scheduler  Successfully assigned openshift-marketplace/example-catalog-bwt8z to ci-ln-jyryyf2-f76d1-fgdbq-worker-b-vsxjd
     Normal   AddedInterface  47s                multus             Add eth0 [10.131.0.40/23] from openshift-sdn
     Normal   BackOff         20s (x2 over 46s)  kubelet            Back-off pulling image "quay.io/example-org/example-catalog:v1"
     Warning  Failed          20s (x2 over 46s)  kubelet            Error: ImagePullBackOff
     Normal   Pulling         8s (x3 over 47s)   kubelet            Pulling image "quay.io/example-org/example-catalog:v1"
     Warning  Failed          8s (x3 over 47s)   kubelet            Failed to pull image "quay.io/example-org/example-catalog:v1": rpc error: code = Unknown desc = reading manifest v1 in quay.io/example-org/example-catalog: unauthorized: access to the requested resource is not authorized
     Warning  Failed          8s (x3 over 47s)   kubelet            Error: ErrImagePull

   In the preceding example output, the error messages indicate that the catalog source’s index image is failing to pull successfully because of an authorization issue. For example, the index image might be stored in a registry that requires login credentials.

Procedure

1. List Operators running in the cluster. The output includes Operator version, availability, and up-time information:

   $ oc get clusteroperators

2. List Operator pods running in the Operator’s namespace, plus pod status, restarts, and age:

   $ oc get pod -n <operator_namespace>

3. Output a detailed Operator pod summary:

   $ oc describe pod <operator_pod_name> -n <operator_namespace>

Procedure

1. List the Operator pods that are running in the Operator’s namespace, plus the pod status, restarts, and age:

   $ oc get pods -n <operator_namespace>

2. Review logs for an Operator pod:

   $ oc logs pod/<pod_name> -n <operator_namespace>

   If an Operator pod has multiple containers, the preceding command will produce an error that includes the name of each container. Query logs from an individual container:

   $ oc logs pod/<operator_pod_name> -c <container_name> -n <operator_namespace>

3. If the API is not functional, review Operator pod and container logs on each control plane node by using SSH instead. Replace <master-node>.<cluster_name>.<base_domain> with appropriate values.

   1. List pods on each control plane node:

      $ ssh core@<master-node>.<cluster_name>.<base_domain> sudo crictl pods

   2. For any Operator pods not showing a Ready status, inspect the pod’s status in detail. Replace <operator_pod_id> with the Operator pod’s ID listed in the output of the preceding command:

      $ ssh core@<master-node>.<cluster_name>.<base_domain> sudo crictl inspectp <operator_pod_id>

   3. List containers related to an Operator pod:

      $ ssh core@<master-node>.<cluster_name>.<base_domain> sudo crictl ps --pod=<operator_pod_id>

   4. For any Operator container not showing a Ready status, inspect the container’s status in detail. Replace <container_id> with a container ID listed in the output of the preceding command:

      $ ssh core@<master-node>.<cluster_name>.<base_domain> sudo crictl inspect <container_id>

   5. Review the logs for any Operator containers not showing a Ready status. Replace <container_id> with a container ID listed in the output of the preceding command:

      $ ssh core@<master-node>.<cluster_name>.<base_domain> sudo crictl logs -f <container_id>

      Note

      Red Hat OpenShift Service on AWS 4 cluster nodes running Red Hat Enterprise Linux CoreOS (RHCOS) are immutable and rely on Operators to apply cluster changes. Accessing cluster nodes by using SSH is not recommended. Before attempting to collect diagnostic data over SSH, review whether the data collected by running oc adm must gather and other oc commands is sufficient instead. However, if the Red Hat OpenShift Service on AWS API is not available, or the kubelet is not properly functioning on the target node, oc operations will be impacted. In such situations, it is possible to access nodes using ssh core@<node>.<cluster_name>.<base_domain>.

1. Create an Operator project by using the Operator SDK command-line interface (CLI).
2. Define new resource APIs by adding custom resource definitions (CRDs).
3. Specify resources to watch by using the Operator SDK API.
4. Define the Operator reconciling logic in a designated handler and use the Operator SDK API to interact with resources.
5. Use the Operator SDK CLI to build and generate the Operator deployment manifests.

Procedure

1. Navigate to the OpenShift mirror site.
2. From the latest 4 directory, download the latest version of the tarball for Linux.

3. Unpack the archive:

   $ tar xvf operator-sdk-v1.38.0-ocp-linux-x86_64.tar.gz

4. Make the file executable:

   $ chmod +x operator-sdk

5. Move the extracted operator-sdk binary to a directory that is on your PATH.

   Tip

   To check your PATH:

   $ echo $PATH

   $ sudo mv ./operator-sdk /usr/local/bin/operator-sdk

Procedure

1. For the amd64 architecture, navigate to the OpenShift mirror site for the amd64 architecture.
2. From the latest 4 directory, download the latest version of the tarball for macOS.

3. Unpack the Operator SDK archive for amd64 architecture by running the following command:

   $ tar xvf operator-sdk-v1.38.0-ocp-darwin-x86_64.tar.gz

4. Make the file executable by running the following command:

   $ chmod +x operator-sdk

5. Move the extracted operator-sdk binary to a directory that is on your PATH by running the following command:

   Tip

   Check your PATH by running the following command:

   $ echo $PATH

   $ sudo mv ./operator-sdk /usr/local/bin/operator-sdk